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Casio FX-991EX vs Sharp EL-W506

3.03 in
0.44 in
Casio FX-991EX Calculator
Casio FX-991EX
3.15 in
0.55 in
Sharp EL-W506 Calculator
Sharp EL-W506
Available colors
User rating
318
3.3 out of 5
318 user ratings
5 stars
20 %
4 stars
18 %
3 stars
42 %
2 stars
12 %
1 stars
5 %
57
4.1 out of 5
57 user ratings
5 stars
49 %
4 stars
19 %
3 stars
22 %
2 stars
7 %
1 stars
1 %

Full Comparison

Technical details

Casio FX-991EXCasio FX-991EX
Sharp EL-W506Sharp EL-W506
TypeScientific calculatorBasic calculator

Design

Casio FX-991EXCasio FX-991EX
Sharp EL-W506Sharp EL-W506
Colour of product
  • Black
  • Black,White
  • Black
  • Blue
  • Grey
  • Silver

Dimensions

Casio FX-991EXCasio FX-991EX
Sharp EL-W506Sharp EL-W506
Width3.03 in3.15 in
Height0.44 in0.55 in
Depth6.52 in6.61 in
Weight3.17 oz3.49 oz

Display

Casio FX-991EXCasio FX-991EX
Sharp EL-W506Sharp EL-W506
Number of characters per line1610
Number of display lines24

Connectivity

Casio FX-991EXCasio FX-991EX
Sharp EL-W506Sharp EL-W506
Data transfernono

Power

Casio FX-991EXCasio FX-991EX
Sharp EL-W506Sharp EL-W506
Battery operatedyesyes
External power connection
  • Solar cell
  • External source
Solar cell

Pros & Cons

Pros
      Cons

          Often compared with Casio FX-991EX